ArticleEuropean journal of medical research2025
Construction of a novel 3-gene diagnostic signature related to senescence in intervertebral disc degeneration.
Article in European journal of medical research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundNumerous studies have manifested that cellular senescence involves in the pathogenesis of intervertebral disc degeneration (IDD). Here, we constructed a novel senescence-related genes (SRGs) signature for IDD.
methodsThree data sets were derived from Gene Expression Omnibus (GEO) database and 370 SRGs were collected from cellAge database. Key module genes related to senescence in IDD were screened using "WGCNA" package. The "limma" package was employed to filter differentially expressed genes (DEGs) between control and IDD groups, and candidate genes were identified by intersecting up-regulated DEGs and module genes. Hub genes were screened by randomForest and LASSO regression analysis. Diagnosis performance of hub genes was assessed and verified by receiver operating characteristic (ROC) curve. Diagnosis biomarkers of IDD were identified based on AUC > 0.7. Signaling pathway enrichment analysis of biomarkers was performed using "clusterProfiler" package. Immune cells infiltration was evaluated by "MCP-counter" and "GSVA" packages.
resultsA total of 625 module genes and 384 DEGs were obtained, then 28 candidate genes related to senescence in IDD were screened. By machine learning, 4 hub genes were identified with good diagnostic performance, which were highly expressed in IDD samples. Furthermore, 3 biomarkers (BID, KANK2, and SMIM3) were screened with AUC > 0.7 in external datasets. Three biomarkers were mainly involved in nuclear factor (NF)-kappa B, TNF, IL-17, and NOD-like receptor signaling pathway, etc. Besides, BID, KANK2, and SMIM3 exhibited positive association with most immune cell infiltration.
conclusionsWe identified 3 diagnostic biomarkers related to senescence in IDD, hoping to improve the treatment of IDD.
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